In 1843, the Trade Association for Nassau was founded on the initiative of several entrepreneurs to serve as a platform for the interests of the economy and to give entrepreneurs a voice within the estates of the Duchy of Nassau. The number of members rose from 367 to over 2,000 in 1866. In 1849, the number of local associations was increased from the original nine to 35.

Their aims were to enforce freedom of trade in the duchy, to promote industry and commerce and to disseminate the necessary know-how. The Nassau Trade Association was active in many areas, with the transfer of specialist knowledge through improved school education playing a central role.

The first trade school was opened in 1845, and 20 years later there were already 32. These educational institutions were run by the individual local associations. The Duchy of Nassau covered a large part of the costs incurred. The trade association for Nassau ensured the distribution of urgently needed specialist literature, organized lectures with the aim of teaching new working techniques and developed regional support programmes.

In 1846 and 1850, the Nassau Trade Association organized two trade exhibitions, followed by the Nassau Art and Trade Exhibition in Wiesbaden in 1863.

The Trade Association for Nassau promoted start-up initiatives by young entrepreneurs, drew attention to fiscal and administrative obstacles and campaigned for their removal. The tasks of the trade association for Nassau are continued today by the chambers of industry and commerce.